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SiTHv2 — Terrestrial Evapotranspiration & Soil Moisture
SiTHv2 (Simple Terrestrial Hydrosphere model, version 2) is a physically-based ecohydrological
dataset of global terrestrial evapotranspiration and soil moisture.
All files are hosted on Cloudflare R2 and served via direct HTTPS links -- batch download with
wget,
aria2 or
curl is fully supported.
Model Framework
GSPAC continuum
Groundwater, soil, plant and atmosphere coupled in one physically based scheme.
Root-aware transpiration
Potential transpiration is allocated across soil layers by root distribution and soil water status.
Bayesian optimization
Key parameter functions identified from global eddy-covariance observations via data–model fusion.
Variables
Download
Batch Download Quick Start
- Use the filters below to pick variables / frequency / years, then click Download Manifest (.txt) to get a link list;
- Run
wget -c -i sithv2_files.txt— batch download with resume support; - For faster multi-connection download:
aria2c -x 8 -s 8 -i sithv2_files.txt.
# Batch download (resumable) with a manifest from this page:
wget -c -i sithv2_files.txt
# Faster, 8 connections per file:
aria2c -x 8 -s 8 -i sithv2_files.txt
# Single file (copy any link from the table below):
wget -c <file-url>| File | Variable | Frequency | Period | Size | Action |
|---|
Citation & Terms
If you use the SiTHv2 dataset in your research, please cite the dataset paper: （使用本数据集发表论文时，请引用SiTHv2数据集论文）
Zhang, K., Chen, H., Ma, N., Shang, S., Wang, Y., Xu, Q., & Zhu, G. (2024). A global dataset of terrestrial evapotranspiration and soil moisture dynamics from 1982 to 2020. Scientific Data, 11(1), 445. https://doi.org/10.1038/s41597-024-03271-7
Related Papers
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Zhang, K., Zhu, G., Ma, N., Chen, H., & Shang, S. (2022). Improvement of evapotranspiration simulation in a physically based ecohydrological model for the groundwater–soil–plant–atmosphere continuum. Journal of Hydrology, 613, 128440. doi:10.1016/j.jhydrol.2022.128440
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Zhu, G., Zhang, K., Chen, H., Wang, Y., Su, Y., Zhang, Y., & Ma, J. (2019). Development and evaluation of a simple hydrologically based model for terrestrial evapotranspiration simulations. Journal of Hydrology, 577, 123928. doi:10.1016/j.jhydrol.2019.123928
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Chen, H., Zhang, K., Zhu, G., Fan, L., Li, X., Wang, Y., Wang, X., Shang, S., Jia, J., Zhu, Y., & Xiao, J. (2025). The trend and interannual variability in the global terrestrial evapotranspiration are respectively dominated by humid regions and drylands. Journal of Hydrology, 134879. doi:10.1016/j.jhydrol.2025.134879
The dataset is released for academic research and education. 数据集仅供科研与教学使用。
Questions / 数据问题
Broken links, data questions or collaboration: zhangkun3@mail.sysu.edu.cn
© Ecohydro-RS Lab · Sun Yat-sen University · SiTHv2 Data Portal